I agree with you Chris. Ashton's tweet to his 6 millon followers in Twitter has sent 23 thousand fans to my PadMapper video so far.Actually, his Tweet click through rate must be a lot lower than you said because he also posted the video on his Facebook page where he has 7 million fans!At any rate, Ashton kind words did indeed made my day and my PadMapper client is thrilled to say the least.I take your tweets over Ashton's any day. What can we do to get you to 6 million fans now!

In my experience, it's impossible to measure whose tweets get the most clicks or at what time is the best time to post a tweet for maximum clicks, because it all depends on the content of the tweet. You have to make funny or interesting tweets for them to be clicked on, and not all tweets will get the same interest.

Yep. It's all about context. Outside of your well-connected social circle, people pay attention to you because you write about something they care about. Everything off topic (for them) is ignored as static.

BTW, I love this quote: "Do you think it's easier to get 250 people like me to tweet about your company/cause? Or to find a way to get to Ashton?"